All categories

3 years ago

Solve the system of equations

1 answer:

5 0

Because both answers equal y, we can set them equal to each other. So, -8x=-5x-9. Add five over to get -3x=-9. Divide and x=3. Then plug 3 in to solve for y. -8(3)=24. The ordered pair is (3,24).

You might be interested in

4×-6+x+3 what is the value of this expression when x =8

soldi70 [24.7K]

Answer:

$- 13$

Step-by-step explanation:

$4 \times - 6 + x + 3$

GIVEN THAT,

$x = 8$

LET'S SOLVE NOW

$4 \times - 6 + 8 + 3 \\ - 24 + 8 + 3 \\ - 24 + 11 \\ = - 13$

Hope this helps

brainliest appreciated

good luck! have a nice day!

5 0

3 years ago

At 86 km/h, how many miles can you travel in 30 minutes? Round to the nearest hundredth. Use 1 mi = 1.6 km.

Ray Of Light [21]

Answer:

26.875 = 26.88

86km = 60 minutes

86km/2=

43/1.6(kilometers in miles)

26.88

hope this helps uwu

4 0

3 years ago

Jennifer earns $39 for 6 hours of babysitting.how much will she earn for 10 hours

nadya68 [22]

Find the unit rate.

39/6 = 6.5

$6.50 an hour

multiply this by ten to find the cost for 10 hours

$6.5 x 10 = $65

she will earn $65 in ten hours.
hope this helps! :D

4 0

3 years ago

Read 2 more answers

Can someone please help me with this quick question

ser-zykov [4K]

Step-by-step explanation:

quick ...

first we need to find x.

and then we can calculate the area by

baseline × height / 2

which is here

12 × x / 2

x we get via Pythagoras

c² = a² + b²

with c being the Hypotenuse (the side opposite of the 90 degree angle).

15² = 12² + x²

x² = 15² - 12² = 225 - 144 = 81

x = 9

the area of the triangle is then

12 × 9 / 2 = 6×9 = 54 m²

7 0

2 years ago

Read 2 more answers

Patrick has a gas-powered boat that averages 5 miles per gallon of gasoline, and the tank holds 4 gallons. At 2 p.m., he left th

Llana [10]

Answer:

1 hour

Step-by-step explanation:

Let's assume that Patrick is travelling on a straight line throughout the whole path in order to minimize the distance.

The number of miles that he can travel on a full tank is:

$m = 5\ mpg*4\ gallons\\m=20\ miles$

The distance travelled by Patrick in one hour (from 2p.m. to 3p.m.) is:

$d^2=6^2+8^2\\d=\sqrt{100}\\ d=10\ miles$

If he is travelling at 10 miles per hour, and he could travel for a total of 20 miles, then the time remaining before the tank runs out of gasoline is:

$t=\frac{20-10}{10}\\ t=1\ h$

If he continues at this rate, the gas will last for 1 more hour.

3 0

3 years ago